They could have lingered without showing Glen’s eyeball. Like I said, the gore they show adds nothing to the story for me, and I usually just get up and leave, or fast forward, if I’ve got it on DVR.
I don’t do Horror or slasher films for the same reason along with the fact that the plot is slim to none and utterly predictable.
Glen’s eye is actually straight out of the comics. And honestly compared to Rick tearing out that guy’s throat is pretty mild.